Advertisements
Advertisements
प्रश्न
Fill in the blanks:
Metals react with acids to produce _________ gas.
उत्तर
Metals react with acids to produce hydrogen gas.
APPEARS IN
संबंधित प्रश्न
Give the composition of an alloy called solder. State its one property and one use.
Which property of 'solder' alloy makes it suitable for welding electrical wires?
Name one ore of manganese. Which compound of manganese is present in this ore? Also write its chemical formula.
State two important uses of following metal:
Uses of silver
State two important uses of following metal
Uses of magnesium
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Oxygen
Write scientific reason.
Anodes need to be replaced from time to time during the electrolysis of alumina.
What is it made from? Why?
Pots and pans
Write scientific reason.
Meena’s mother uses lemon or tamarind for cleaning copper vessels turned greenish.
Why are metalloids called semimetals?
